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Details

Stereochemistry ACHIRAL
Molecular Formula C26H20N4O8S2
Molecular Weight 580.589
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 3
Charge 0

SHOW SMILES / InChI
Structure of DIRECT YELLOW 4 FREE ACID

SMILES

OC1=CC=C(C=C1)\N=N\C2=CC=C(\C=C\C3=CC=C(C=C3S(O)(=O)=O)\N=N\C4=CC=C(O)C=C4)C(=C2)S(O)(=O)=O

InChI

InChIKey=HNJRBCJUHORNHV-YGCIHOFZSA-N
InChI=1S/C26H20N4O8S2/c31-23-11-7-19(8-12-23)27-29-21-5-3-17(25(15-21)39(33,34)35)1-2-18-4-6-22(16-26(18)40(36,37)38)30-28-20-9-13-24(32)14-10-20/h1-16,31-32H,(H,33,34,35)(H,36,37,38)/b2-1+,29-27+,30-28+

HIDE SMILES / InChI

Approval Year

Name Type Language
DIRECT YELLOW 4 FREE ACID
Common Name English
2,2'-STILBENEDISULFONIC ACID, 4,4'-BIS(P-HYDROXYPHENYLAZO)-
Preferred Name English
BENZENESULFONIC ACID, 2,2'-(1,2-ETHENEDIYL)BIS(5-(2-(4-HYDROXYPHENYL)DIAZENYL)-
Systematic Name English
2,2'-(1,2-ETHENEDIYL)BIS(5-(2-(4-HYDROXYPHENYL)DIAZENYL)BENZENESULFONIC ACID)
Systematic Name English
Code System Code Type Description
FDA UNII
35KMX2FK8K
Created by admin on Tue Apr 01 19:50:33 GMT 2025 , Edited by admin on Tue Apr 01 19:50:33 GMT 2025
PRIMARY
EPA CompTox
DTXSID1059022
Created by admin on Tue Apr 01 19:50:33 GMT 2025 , Edited by admin on Tue Apr 01 19:50:33 GMT 2025
PRIMARY
ECHA (EC/EINECS)
202-062-6
Created by admin on Tue Apr 01 19:50:33 GMT 2025 , Edited by admin on Tue Apr 01 19:50:33 GMT 2025
PRIMARY
CAS
91-34-9
Created by admin on Tue Apr 01 19:50:33 GMT 2025 , Edited by admin on Tue Apr 01 19:50:33 GMT 2025
PRIMARY